The Hawaii Natural Energy Institute is located on the University of Hawaii's Manoa campus.  The insitute's main office is located in the Pacific Ocean Science and Technology (POST) building, room 109.  A map of the campus can be found here.

For directions to HNEI, please visit here; while more information regarding visitor parking can be found here.

Address:
Hawaii Natural Energy Institute
1680 East-West Road, POST 109
Honolulu, HI 96822